I particularly like the verandas on the second and third floors with views of the traffic on Bui Vien Street. They have some computers so you can check email and a small library of left behind books.
I know they have a menu of Vietnamese food, but I never looked at it closely because I always went straight to the cakes and brownies and sandwiches, which were the closest approximation to baked goods at home. I also liked getting a package of chocolate chip or peanut butter cookies from the case in front to take away whenever I was passing by.
-Robert